EP0913331A1 - Device for uniformly wetting labels - Google Patents

Device for uniformly wetting labels Download PDF

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Publication number
EP0913331A1
EP0913331A1 EP98402221A EP98402221A EP0913331A1 EP 0913331 A1 EP0913331 A1 EP 0913331A1 EP 98402221 A EP98402221 A EP 98402221A EP 98402221 A EP98402221 A EP 98402221A EP 0913331 A1 EP0913331 A1 EP 0913331A1
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EP
European Patent Office
Prior art keywords
wetting
bar
slots
strip
capillarity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP98402221A
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German (de)
French (fr)
Inventor
Gilbert Sancenot
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Quadient Technologies France SA
Original Assignee
Neopost Technologies SA
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Filing date
Publication date
Application filed by Neopost Technologies SA filed Critical Neopost Technologies SA
Publication of EP0913331A1 publication Critical patent/EP0913331A1/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
    • B65C9/20—Gluing the labels or articles
    • B65C9/22—Gluing the labels or articles by wetting, e.g. by applying liquid glue or a liquid to a dry glue coating

Definitions

  • the invention relates to a device for wetting so uniform a flexible strip such as a strip of paper or any other flexible support previously glued commercially, used for franking of letters, packages and parcels, for packaging and labeling.
  • European patent application No. 0 293 316 describes a device to wet previously glued labels which includes a wetting element in the form of a brush consisting of a sheet of son.
  • the brush is placed in a tank filled with a wetting liquid able to dilute the glue.
  • the lower part of the brush is immersed in the liquid anchorage maintained at constant level.
  • the upper part of the brush, wetted liquid by capillarity, is kept in contact with the face pasted labels as they pass in front of the brush. If this brush holds better over time than a sponge or a felt pen, it has the disadvantage of not regularly distributing, over time, the wetting liquid on the adhesive side of the labels because it inadvertently loading glue.
  • the object of the invention is to provide a device for wetting a flexible strip comprising a wetting element which does not have the aforementioned drawbacks and in particular keeps a uniform wetting even with excess wetting liquid.
  • the invention relates to a device for wetting a flexible strip having one face at least partially glued, comprising a rigid rod-shaped mooring element having a lower part immersed in dampening liquid and a wet upper part liquid audit by capillary action, in contact with glued side during scrolling, in a direction of travel, of said strip against said wetting element said upper part of the wetting element being crossed, in said direction of travel of the flexible strip, by a plurality of capillary slots having respective bottoms bathing in the wetting liquid, device characterized in that said slots of capillarity are tilted relative to the direction of travel so to allow wetting over the entire width of the adhesive side of the strip flexible.
  • the degree of wetting is increased by sweeping the entire glued area of the strip which is thus uniformly wetted. Indeed, the edges of the strip which wasn't wet before, could cause detachment or deterioration of the label even already stuck.
  • the boot time is reduced to a few seconds given the larger volume of displaced liquid.
  • an end portion of a capillary slot is aligned in said direction of travel of the flexible strip on a end portion of an adjacent capillary slot.
  • the device 1 for wetting a flexible strip such a strip of paper 2 having one side at least partially glued, such as a label comprises a tank 3 in which is placed a rigid bar 4, of substantially parallelepiped shape having its part upper protruding from the opening of the tank.
  • the bar rigid 4 rests on studs 5 secured to the bottom of the tank and is maintained to these by means of pins 6 fixed to the studs 5 and coming to be housed at force in recesses 7 arranged in the lower part of the bar.
  • a polarizer 7a can possibly be provided to allow a correct assembly of the bar.
  • the rigid bar is Removable mounted so that it can be removed from the tank if necessary. he can thus be replaced by a standard bar (as described in the patent cited in the preamble FR 91 16369) when the use of a bar improved according to the invention is not essential.
  • the paper strip 2 conventionally driven by a set of rollers and counter-rollers (not shown) scrolls above the bar in a direction of travel and a direction represented by the arrow f, the direction of travel of the paper strip being perpendicular to the axis longitudinal of the bar in place in the tank as visible in Figure 2.
  • the previously glued side of the paper strip faces the part upper part of the rigid bar and comes flush with it.
  • the upper part of the bar is crossed, in the direction of scrolling of the paper strip, by a plurality of capillarity slots 8 illustrated in isometric perspective in FIG. 3.
  • Each slot of capillarity 8 leads to the upper face or from above 4a, the front face 4b and the rear face 4c of the rigid bar 4.
  • the front face 4b is slightly chamfered at its upper connecting edge with the top face 4a in order to favor the introduction of the flexible strip.
  • slots opening only on the face of the top 4a and the rear face 4c of the bar to obtain the same effect.
  • these slots are inclined relative to the direction scrolling in order to obtain a wetting over the entire width of the face glued with flexible tape.
  • Figure 5 which is a top view of the improved bar, an end portion (for example the part 82 at the front face 4b) of a slot capillarity is substantially aligned, in the direction of travel f, on an end part (for example part 83 at the rear face) an adjacent capillary slot.
  • the inclination of the slots of capillarity is practiced symmetrically with respect to the direction of scroll (sort of forming a chevron arrangement) and the bar 4 is also advantageously provided with a central slot 8a parallel to this direction.
  • the inclination is optimized according to the wetting capacity of the bar, the total width of the strip and the number of capillary slots. So, for example, for mooring American labels continuously available on a roll, the Applicant has observed that a bar with seven slots, six of which are tilted at 30 ° allowed to obtain very satisfactory results with a rate of insufficiently wet labels reduced by almost 100% compared to a standard bar conforming to patent FR 91 16369.
  • the tank 3 is filled with a wetting liquid such as a dilution of the glue, such as water, the level of which is kept constant by any suitable means such as that described in the aforementioned patent application EP 0 293 316, so that the bottom 9 of the slots bathes continuously in the wetting liquid.
  • a wetting liquid such as a dilution of the glue, such as water, the level of which is kept constant by any suitable means such as that described in the aforementioned patent application EP 0 293 316, so that the bottom 9 of the slots bathes continuously in the wetting liquid.
  • the bar 4 can be made of an injected thermoplastic material suitable for capillary supplying the wetting liquid from the bottom 9 of the slots capillarity up to the upper face 4a of the bar. He is placed transversely to the path of advance of the paper strip 2 of so that the upper part of it, wetted to said liquid by capillarity, sweeps the entire glued side of the paper strip.
  • the bar 4 is also provided at its upper part with grooves 10 arranged between the capillary slots 8 and in places parallel to them. As shown in Figures 1 and 3, the grooves are wider than the through capillary slots thus promoting the return of a surplus of water in the tank 3 while minimizing the friction surface flexible strip on the bar (this material release also allows reduce the weight of the bar). As we can understand, each tooth 11 of the bar (whose total width is greater than that of a groove) formed between two grooves 10, is crossed by a slot capillarity 8 which has a very small width (of the order of a few tenths of mm). The number of teeth and grooves is chosen according to the width paper strip and paper quality.
  • the bar 4 has seven capillary slots for the wetting a strip of paper about 4 cm wide.
  • the tape speed, height of liquid level of dilution of the adhesive relative to the bottom of the through slots of capillarity, the width of these and their inclination relative to the scrolling direction allow to vary the quantity of water deposited on the glued side of the paper strip.
  • a guide member of the strip of paper consisting of an upper part 12 and a part lower 13 is fixed to the tank 3 by fixing screws 14 respectively, 14 ', these two parts being arranged on either side of the strip of paper 2.
  • the upper part 12 of the guide member which is mounted on the above the paper strip, for pressure application of the strip of paper 2 on the upper part of the bar 4a, is provided with a plurality of ribs 15 facing the upper part of the bar 4a. Each rib 15 extends parallel to the direction of travel preferably facing a groove 10.
  • the upper part 12 of the guide member can also be hinged to be able to pivot between a first position where it is positioned above the paper strip 2 for its pressure application on the upper part of the bar 4a and a second position where it forms a deflector preventing the strip from paper 2 to come flush with the upper part of the bar 4a.
  • the invention is not limited to the exemplary embodiment above described and we can provide other variants without going outside of the scope of the invention.
  • the slots of capillarity are simply arranged parallel to each other and inclined with respect to the direction of travel of a determined angle, under of course reserves that this provision allows a complete scan of the band.

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  • Coating Apparatus (AREA)
  • Making Paper Articles (AREA)

Abstract

The device for uniformly wetting the sticky surface of labels comprises a wetting component constituted by a rigid bar (4). The upper part of the bar which is in contact with the sticky surface of the labels is passed through by capillary slits (8). These slits are inclined relative to the movement direction of the labels. The slit bottoms (9) are filled with a wetting liquid which is maintained at a constant level.

Description

Domaine de la techniqueTechnical area

L'invention se rapporte à un dispositif pour mouiller de façon uniforme une bande souple telle qu'une bande de papier ou tout autre support souple préalablement encollé du commerce, utilisé pour l'affranchissement des lettres, paquets et colis, pour l'emballage et l'étiquetage.The invention relates to a device for wetting so uniform a flexible strip such as a strip of paper or any other flexible support previously glued commercially, used for franking of letters, packages and parcels, for packaging and labeling.

Art antérieurPrior art

Les dispositifs les plus répandus, car les plus simples, pour mouiller une bande souple préalablement encollée comportent un élément de mouillage constitué par une éponge ou un feutre. Il est connu que ce type d'élément de mouillage n'a pas une bonne tenue dans le temps.The most common, because the simplest, devices for wetting a flexible strip previously glued comprises an element of wetting consisting of a sponge or a felt. It is known that this type wetting element does not have good resistance over time.

La demande de brevet européen N° 0 293 316 décrit un dispositif pour mouiller des étiquettes préalablement encollées qui comprend un élément de mouillage sous forme d'une brosse constituée d'une nappe de fils. La brosse est placée dans une cuve remplie d'un liquide de mouillage apte à diluer la colle. La partie inférieure de la brosse baigne dans le liquide de mouillage maintenu à niveau constant. La partie supérieure de la brosse, mouillée du liquide par capillarité, est maintenue en contact avec la face encollée des étiquettes au cours de leur défilement devant la brosse. Si cette brosse a une meilleure tenue dans le temps qu'une éponge ou un feutre, elle présente l'inconvénient de ne pas répartir régulièrement, dans le temps, le liquide de mouillage sur la face encollée des étiquettes du fait qu'elle se charge intempestivement de colle. En effet, le raclage de la face encollée des étiquettes sur les extrémités des fils de la brosse provoque un dépôt de colle entre les fils de la brosse. Il en résulte un phénomène d'encrassement de la brosse du fait que la colle reste piégée entre les fils de la brosse sans possibilité d'être évacuée au cours du défilement des étiquettes. Ceci entraíne un mauvais transfert de liquide de mouillage aux étiquettes, certaines parties de la face encollée des étiquettes étant lavées, et il en résulte un mouillage des étiquettes qui n'est pas uniforme dans le temps.European patent application No. 0 293 316 describes a device to wet previously glued labels which includes a wetting element in the form of a brush consisting of a sheet of son. The brush is placed in a tank filled with a wetting liquid able to dilute the glue. The lower part of the brush is immersed in the liquid anchorage maintained at constant level. The upper part of the brush, wetted liquid by capillarity, is kept in contact with the face pasted labels as they pass in front of the brush. If this brush holds better over time than a sponge or a felt pen, it has the disadvantage of not regularly distributing, over time, the wetting liquid on the adhesive side of the labels because it inadvertently loading glue. Indeed, the scraping of the glued side labels on the ends of the brush wires cause a deposit of glue between the brush wires. This results in a fouling phenomenon of the brush because the glue remains trapped between the brush wires without possibility of being evacuated during the scrolling of the labels. This causes poor transfer of fountain liquid to the labels, certain parts of the adhesive side of the labels being washed, and there this results in a wetting of the labels which is not uniform over time.

Aussi, dans le brevet français FR 91 16369 déposé au nom de la demanderesse, il a été divulgué un élément de mouillage rigide pourvu de fentes de capillarité parallèles qui permettent une évacuation continue des résidus de colle par canalisation du liquide de mouillage dans les fentes de capillarité. Toutefois, bien que cet élément donne entière satisfaction pour de nombreuses applications, il est apparu que lorsque les étiquettes ne disposent pas suffisamment de colle et donc nécessitent un surcroít de liquide de mouillage, l'efficacité du mouillage disparaít entraínant un mauvais collage des étiquettes ou une ouverture des enveloppes lorsque la bande souple à coller est constituée par le rabat de ces enveloppes.Also, in French patent FR 91 16369 filed in the name of the plaintiff, a rigid wetting element provided with parallel capillary slots which allow continuous evacuation of glue residue by channeling the wetting liquid into the slots capillarity. However, although this element is entirely satisfactory for many applications, it appeared that when the labels did not do not have enough glue and therefore require an additional wetting liquid, the effectiveness of wetting disappears resulting in a improper sticking of labels or opening of envelopes when the flexible strip to be bonded is formed by the flap of these envelopes.

Définition et objet de l'inventionDefinition and object of the invention

Le but de l'invention est de proposer un dispositif pour mouiller une bande souple comportant un élément de mouillage qui ne présente pas les inconvénients précités et notamment garde un mouillage uniforme même avec un surplus de liquide de mouillage.The object of the invention is to provide a device for wetting a flexible strip comprising a wetting element which does not have the aforementioned drawbacks and in particular keeps a uniform wetting even with excess wetting liquid.

A cet effet, l'invention a pour objet un dispositif pour mouiller une bande souple ayant une face au moins partiellement encollée, comportant un élément de mouillage en forme de barreau rigide ayant une partie inférieure baignant dans un liquide de mouillage et une partie supérieure mouillée audit liquide par capillarité, en contact avec face encollée au cours du défilement, selon une direction de défilement, de ladite bande contre ledit élément de mouillage ladite partie supérieure de l'élément de mouillage étant traversée, selon ladite direction de défilement de la bande souple, par une pluralité de fentes de capillarité ayant des fonds respectifs baignant dans le liquide de mouillage, dispositif caractérisé en ce que lesdites fentes de capillarité sont inclinées par rapport à la direction de défilement de façon à permettre un mouillage sur toute la largeur de la face encollée de la bande souple.To this end, the invention relates to a device for wetting a flexible strip having one face at least partially glued, comprising a rigid rod-shaped mooring element having a lower part immersed in dampening liquid and a wet upper part liquid audit by capillary action, in contact with glued side during scrolling, in a direction of travel, of said strip against said wetting element said upper part of the wetting element being crossed, in said direction of travel of the flexible strip, by a plurality of capillary slots having respective bottoms bathing in the wetting liquid, device characterized in that said slots of capillarity are tilted relative to the direction of travel so to allow wetting over the entire width of the adhesive side of the strip flexible.

Par cette inclinaison des fentes de mouillage, le degré de mouillage est augmenté du fait d'un balayage de toute la surface encollée de la bande qui est ainsi mouillée de façon uniforme. En effet, les bords du bandeau qui n'étaient pas mouillés auparavant, pouvaient provoquer le décollement ou la détérioration de l'étiquette même déjà collée. De plus, le temps d'amorçage est réduit à quelques secondes compte tenu du volume plus important de liquide déplacé.By this inclination of the wetting slots, the degree of wetting is increased by sweeping the entire glued area of the strip which is thus uniformly wetted. Indeed, the edges of the strip which weren't wet before, could cause detachment or deterioration of the label even already stuck. In addition, the boot time is reduced to a few seconds given the larger volume of displaced liquid.

Avantageusement, une partie d'extrémité d'une fente de capillarité est alignée dans ladite direction de défilement de la bande souple sur une partie d'extrémité d'une fente de capillarité adjacente.Advantageously, an end portion of a capillary slot is aligned in said direction of travel of the flexible strip on a end portion of an adjacent capillary slot.

Brève description des dessinsBrief description of the drawings

D'autres caractéristiques et avantages de l'invention apparaítront encore mieux à la lecture de la description détaillée qui suit d'un exemple de réalisation de l'invention faite en référence aux dessins :

  • la figure 1 est une vue schématique de face, cuve coupée, du dispositif selon l'invention,
  • la figure 2 est une vue schématique en coupe selon le plan II-II de la figure 1,
  • la figure 3 est une vue en perspective isométrique du barreau perfectionné selon l'invention, et
  • les figures 4 et 5 sont des vues respectivement de face et de dessus du barreau de la figure 3.
Other characteristics and advantages of the invention will appear even better on reading the following detailed description of an embodiment of the invention made with reference to the drawings:
  • FIG. 1 is a schematic front view, cut tank, of the device according to the invention,
  • FIG. 2 is a schematic sectional view along the plane II-II of FIG. 1,
  • FIG. 3 is an isometric perspective view of the improved bar according to the invention, and
  • FIGS. 4 and 5 are respectively front and top views of the bar of FIG. 3.

Description détaillée d'un mode de réalisation préférentielDetailed description of a preferred embodiment

Sur les figures les mêmes références numériques désignent des éléments identiques.In the figures, the same reference numerals designate identical items.

Sur la figure 1, le dispositif 1 pour mouiller une bande souple telle qu'une bande de papier 2 ayant une face au moins partiellement encollée, telle qu'une étiquette, comporte une cuve 3 dans laquelle est placé un barreau rigide 4, de forme sensiblement parallélélipédique ayant sa partie supérieure faisant saillie par rapport à l'ouverture de la cuve. Le barreau rigide 4 repose sur des plots 5 solidaires du fond de la cuve et est maintenu à ceux ci par l'intermédiaire de pions 6 fixés aux plots 5 et venant se loger à force dans des évidements 7 aménagés dans la partie inférieure du barreau. Un détrompeur 7a peut éventuellement être prévu pour permettre un montage correct du barreau. Selon cette disposition le barreau rigide est monté amovible pour pouvoir être enlevé de la cuve en cas de besoin. Il peut ainsi être remplacé par un barreau standard (tel que décrit dans le brevet cité en préambule FR 91 16369) lorsque l'utilisation d'un barreau perfectionné selon l'invention n'est pas indispensable.In Figure 1, the device 1 for wetting a flexible strip such a strip of paper 2 having one side at least partially glued, such as a label, comprises a tank 3 in which is placed a rigid bar 4, of substantially parallelepiped shape having its part upper protruding from the opening of the tank. The bar rigid 4 rests on studs 5 secured to the bottom of the tank and is maintained to these by means of pins 6 fixed to the studs 5 and coming to be housed at force in recesses 7 arranged in the lower part of the bar. A polarizer 7a can possibly be provided to allow a correct assembly of the bar. According to this arrangement, the rigid bar is Removable mounted so that it can be removed from the tank if necessary. he can thus be replaced by a standard bar (as described in the patent cited in the preamble FR 91 16369) when the use of a bar improved according to the invention is not essential.

La bande de papier 2 entraínée de façon classique par un jeu de rouleaux et contre-rouleaux (non représentés) défile au dessus du barreau selon une direction de défilement et un sens représentés par la flèche f, la direction de défilement de la bande de papier étant perpendiculaire à l'axe longitudinal du barreau en place dans la cuve comme visible sur la figure 2. La face préalablement encollée de la bande de papier fait face à la partie supérieure du barreau rigide et vient en affleurement avec celle-ci.The paper strip 2 conventionally driven by a set of rollers and counter-rollers (not shown) scrolls above the bar in a direction of travel and a direction represented by the arrow f, the direction of travel of the paper strip being perpendicular to the axis longitudinal of the bar in place in the tank as visible in Figure 2. The previously glued side of the paper strip faces the part upper part of the rigid bar and comes flush with it.

La partie supérieure du barreau est traversée, selon la direction de défilement de la bande de papier, par une pluralité de fentes de capillarité 8 illustrées en perspective isométrique sur la figure 3. Chaque fente de capillarité 8 débouche sur la face supérieure ou de dessus 4a, la face avant 4b et la face arrière 4c du barreau rigide 4. Il peut être noté que le face avant 4b est légèrement chanfreinée au niveau de son arrête supérieure de liaison avec la face de dessus 4a afin de favoriser l'introduction de la bande souple. Bien entendu, on pourrait concevoir des fentes débouchant seulement sur la face du dessus 4a et la face arrière 4c du barreau pour obtenir le même effet. The upper part of the bar is crossed, in the direction of scrolling of the paper strip, by a plurality of capillarity slots 8 illustrated in isometric perspective in FIG. 3. Each slot of capillarity 8 leads to the upper face or from above 4a, the front face 4b and the rear face 4c of the rigid bar 4. It can be noted that the front face 4b is slightly chamfered at its upper connecting edge with the top face 4a in order to favor the introduction of the flexible strip. Of course, one could design slots opening only on the face of the top 4a and the rear face 4c of the bar to obtain the same effect.

Selon l'invention, Ces fentes sont inclinées par rapport à la direction de défilement de façon à obtenir un mouillage sur toute la largeur de la face encollée de la bande souple. Ainsi, comme il peut être noté sur la figure 5 qui est une vue de dessus du barreau perfectionné, une partie d'extrémité (par exemple la partie 82 au niveau de la face avant 4b) d'une fente de capillarité est sensiblement alignée, dans la direction de défilement f, sur une partie d'extrémité (par exemple la partie 83 au niveau de la face arrière) d'une fente de capillarité adjacente. Par cette disposition, même les bords longitudinaux (par rapport à la direction de défilement) sont maintenant correctement mouillés, notamment par exemple par une partie d'extrémité référencée 81 en ce qui concerne le bord longitudinal droit. Selon un exemple préférentiel de réalisation de l'invention, l'inclinaison des fentes de capillarité est pratiquée symétriquement par rapport à la direction de défilement (formant en quelque sorte une disposition en chevrons) et le barreau 4 est en outre pourvu avantageusement d'une fente centrale 8a parallèle à cette direction. L'inclinaison est optimisée en fonction de la capacité de mouillage du barreau, de la largeur totale de la bande et du nombre de fentes de capillarité. Ainsi, par exemple, pour le mouillage d'étiquettes américaines disponibles en continu sur un rouleau, la demanderesse a pu constater qu'un barreau comportant sept fentes dont six sont inclinées à 30° permettait d'obtenir des résultats très satisfaisants avec un taux d'étiquettes insuffisamment mouillées diminué de presque 100 % par rapport à un barreau standard conforme au brevet FR 91 16369.According to the invention, these slots are inclined relative to the direction scrolling in order to obtain a wetting over the entire width of the face glued with flexible tape. So, as can be noted in Figure 5 which is a top view of the improved bar, an end portion (for example the part 82 at the front face 4b) of a slot capillarity is substantially aligned, in the direction of travel f, on an end part (for example part 83 at the rear face) an adjacent capillary slot. By this arrangement, even the edges longitudinal (relative to the direction of travel) are now properly wetted, in particular by an end part referenced 81 with respect to the right longitudinal edge. According to a preferred embodiment of the invention, the inclination of the slots of capillarity is practiced symmetrically with respect to the direction of scroll (sort of forming a chevron arrangement) and the bar 4 is also advantageously provided with a central slot 8a parallel to this direction. The inclination is optimized according to the wetting capacity of the bar, the total width of the strip and the number of capillary slots. So, for example, for mooring American labels continuously available on a roll, the Applicant has observed that a bar with seven slots, six of which are tilted at 30 ° allowed to obtain very satisfactory results with a rate of insufficiently wet labels reduced by almost 100% compared to a standard bar conforming to patent FR 91 16369.

La cuve 3 est remplie d'un liquide de mouillage tel qu'un liquide de dilution de la colle, comme par exemple de l'eau, dont le niveau est maintenu constant par tout moyen adapté tel que celui décrit dans la demande de brevet précitée EP 0 293 316, pour que le fond 9 des fentes baigne continuellement dans le liquide de mouillage. The tank 3 is filled with a wetting liquid such as a dilution of the glue, such as water, the level of which is kept constant by any suitable means such as that described in the aforementioned patent application EP 0 293 316, so that the bottom 9 of the slots bathes continuously in the wetting liquid.

Le barreau 4 peut être réalisé en une matière thermoplastique injectée apte à amener par capillarité le liquide de mouillage du fond 9 des fentes de capillarité jusqu'à la face supérieure 4a du barreau. Il est placé transversalement par rapport au chemin d'avance de la bande de papier 2 de manière que la partie supérieure de celui-ci, mouillée audit liquide par capillarité, balaie toute la face encollée de la bande de papier.The bar 4 can be made of an injected thermoplastic material suitable for capillary supplying the wetting liquid from the bottom 9 of the slots capillarity up to the upper face 4a of the bar. He is placed transversely to the path of advance of the paper strip 2 of so that the upper part of it, wetted to said liquid by capillarity, sweeps the entire glued side of the paper strip.

Le barreau 4 est aussi pourvu à sa partie supérieure de rainures 10 disposées entre les fentes de capillarité 8 et par endroit parallèles à celles-ci. Comme visible sur les figures 1 et 3, les rainures sont plus larges que les fentes débouchantes de capillarité favorisant ainsi le retour d'un surplus d'eau dans la cuve 3 tout en réduisant au maximum la surface de frottement de la bande souple sur le barreau (ce dégagement de matière permet en outre de diminuer le poids du barreau). Ainsi qu'on pourra le comprendre, chaque dent 11 du barreau (dont la largeur totale est supérieure à celle d'une rainure) formée entre deux rainures 10, est traversée par une fente de capillarité 8 qui a une largeur très petite (de l'ordre de quelques dixièmes de mm). Le nombre de dents et de rainures est choisie en fonction de la largeur de la bande de papier et de la qualité du papier. Sur l'exemple illustré par les figures, le barreau 4 comporte sept fentes de capillarité pour le mouillage d'une bande de papier dont la largeur est d'environ 4 cm. La vitesse de défilement de la bande de papier, la hauteur du niveau de liquide de dilution de la colle par rapport au fond des fentes débouchantes de capillarité, la largeur de celles-ci et leur inclinaison par rapport à la direction de défilement permettent de faire varier la quantité d'eau déposée sur la face encollée de la bande de papier.The bar 4 is also provided at its upper part with grooves 10 arranged between the capillary slots 8 and in places parallel to them. As shown in Figures 1 and 3, the grooves are wider than the through capillary slots thus promoting the return of a surplus of water in the tank 3 while minimizing the friction surface flexible strip on the bar (this material release also allows reduce the weight of the bar). As we can understand, each tooth 11 of the bar (whose total width is greater than that of a groove) formed between two grooves 10, is crossed by a slot capillarity 8 which has a very small width (of the order of a few tenths of mm). The number of teeth and grooves is chosen according to the width paper strip and paper quality. On the example illustrated by In the figures, the bar 4 has seven capillary slots for the wetting a strip of paper about 4 cm wide. The tape speed, height of liquid level of dilution of the adhesive relative to the bottom of the through slots of capillarity, the width of these and their inclination relative to the scrolling direction allow to vary the quantity of water deposited on the glued side of the paper strip.

Revenons aux figures 1 et 2 pour remarquer qu'un organe de guidage de la bande de papier constitué d'une partie supérieure 12 et d'une partie inférieure 13 est fixé à la cuve 3 par des vis de fixation respectivement 14, 14', ces deux parties étant disposées de part et d'autre de la bande de papier 2. La partie supérieure 12 de l'organe de guidage qui est montée au dessus de la bande de papier, pour l'application en pression de la bande de papier 2 sur la partie supérieure du barreau 4a, est pourvue d'une pluralité de nervures 15 faisant face à la partie supérieure du barreau 4a. Chaque nervure 15 s'étend parallèlement à la direction de défilement de préférence en vis-à-vis d'une rainure 10. La partie supérieure 12 de l'organe de guidage peut aussi être montée à articulation pour pouvoir pivoter entre une première position où elle est positionnée au-dessus de la bande de papier 2 pour son application en pression sur la partie supérieure du barreau 4a et une seconde position où elle forme un déflecteur empêchant la bande de papier 2 de venir affleurer la partie supérieure du barreau 4a.Return to Figures 1 and 2 to notice that a guide member of the strip of paper consisting of an upper part 12 and a part lower 13 is fixed to the tank 3 by fixing screws 14 respectively, 14 ', these two parts being arranged on either side of the strip of paper 2. The upper part 12 of the guide member which is mounted on the above the paper strip, for pressure application of the strip of paper 2 on the upper part of the bar 4a, is provided with a plurality of ribs 15 facing the upper part of the bar 4a. Each rib 15 extends parallel to the direction of travel preferably facing a groove 10. The upper part 12 of the guide member can also be hinged to be able to pivot between a first position where it is positioned above the paper strip 2 for its pressure application on the upper part of the bar 4a and a second position where it forms a deflector preventing the strip from paper 2 to come flush with the upper part of the bar 4a.

Bien entendu, l'invention n'est pas limitée à l'exemple de réalisation ci-dessus décrit et on pourra prévoir d'autres variantes sans pour cela sortir du cadre de l'invention. Et notamment, il peut être envisagé que les fentes de capillarité soient simplement disposées parallèlement entres elles et inclinées par rapport à la direction de défilement d'un angle déterminé, sous réserve bien entendu que cette disposition permette un balayage complet de la bande.Of course, the invention is not limited to the exemplary embodiment above described and we can provide other variants without going outside of the scope of the invention. And in particular, it can be envisaged that the slots of capillarity are simply arranged parallel to each other and inclined with respect to the direction of travel of a determined angle, under of course reserves that this provision allows a complete scan of the band.

Claims (6)

Dispositif pour mouiller une bande souple (2) ayant une face au moins partiellement encollée, comportant un élément de mouillage (4) en forme de barreau rigide ayant une partie inférieure baignant dans un liquide de mouillage et une partie supérieure mouillée audit liquide par capillarité, en contact avec la face encollée au cours du défilement, selon une direction de défilement, de ladite bande contre ledit élément de mouillage, ladite partie supérieure de l'élément de mouillage étant traversée, selon ladite direction de défilement de la bande souple, par une pluralité de fentes (8) de capillarité ayant des fonds (9) respectifs baignant dans le liquide de mouillage, dispositif caractérisé en ce que lesdites fentes de capillarité (8) sont inclinées par rapport à la direction de défilement de façon à permettre un mouillage sur toute la largeur de la face encollée de la bande souple.Device for wetting a flexible strip (2) having one side at least partially glued, comprising a wetting element (4) in rigid rod form having a lower part immersed in a liquid wetting and an upper part wetted to said liquid by capillary action, in contact with the glued side during scrolling, in a direction running of said strip against said wetting element, said upper part of the wetting element being traversed, according to said direction of travel of the flexible strip, by a plurality of slots (8) of capillarity having respective bottoms (9) immersed in the liquid wetting, device characterized in that said capillary slots (8) are inclined relative to the direction of travel so as to allow wetting over the entire width of the glued side of the flexible strip. Dispositif selon la revendication 1, dans lequel une partie d'extrémité (82) d'une fente de capillarité est alignée dans ladite direction de défilement de la bande souple sur une partie d'extrémité (83) d'une fente de capillarité adjacente.The device of claim 1, wherein a portion end (82) of a capillary slot is aligned in said direction for running the flexible strip over an end part (83) of a slot adjacent capillarity. Dispositif selon la revendication 1, dans lequel l'inclinaison desdites fentes de capillarité est symétrique par rapport à la direction de défilement.Device according to claim 1, in which the inclination of said capillarity slots is symmetrical with respect to the direction of scroll. Dispositif selon la revendication 3, dans lequel le barreau (4) comporte en outre une fente centrale (8a) parallèle à la direction de défilement.Device according to claim 3, in which the bar (4) further comprises a central slot (8a) parallel to the direction of scroll. Dispositif selon la revendication 1, dans lequel l'inclinaison desdites fentes de capillarité (8) est déterminée en fonction de la capacité de mouillage du barreau (4), de la largeur de la bande (2) et du nombre de fentes de capillarité. Device according to claim 1, in which the inclination of said capillarity slots (8) is determined according to the capacity of wetting of the bar (4), the width of the strip (2) and the number of capillary slots. Dispositif selon l'une des revendications précédentes, dans lequel le barreau (4) est pourvu à sa partie supérieure de rainures (10), disposées entre les fentes de capillarité (8) et d'une largeur supérieure à ces dernières.Device according to one of the preceding claims, in which the bar (4) is provided at its upper part with grooves (10), arranged between the capillary slots (8) and of a width greater than these past.
EP98402221A 1997-11-03 1998-09-09 Device for uniformly wetting labels Withdrawn EP0913331A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9713798A FR2770423B1 (en) 1997-11-03 1997-11-03 IMPROVED UNIFORM LABEL WETTING DEVICE
FR9713798 1997-11-03

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EP0913331A1 true EP0913331A1 (en) 1999-05-06

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EP (1) EP0913331A1 (en)
FR (1) FR2770423B1 (en)

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Publication number Priority date Publication date Assignee Title
GB0209364D0 (en) * 2002-04-24 2002-06-05 Boc Group Plc Injection of particulate material into liquid
EP1594656B1 (en) * 2003-02-18 2007-09-12 Parker-Hannifin Corporation Polishing article for electro-chemical mechanical polishing
US7067036B2 (en) * 2003-09-25 2006-06-27 Pitney Bowes Inc. Active moistening system for mailing machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2686607A (en) * 1951-08-11 1954-08-17 Nils A Zander Adhesive applicator for label applying machines
FR2685686A1 (en) * 1991-12-31 1993-07-02 Alcatel Satmam DEVICE FOR UNIFORM WETTING OF PRE-GLUED LABELS.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5455062A (en) * 1992-05-28 1995-10-03 Steag Microtech Gmbh Sternenfels Capillary device for lacquering or coating plates or disks

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2686607A (en) * 1951-08-11 1954-08-17 Nils A Zander Adhesive applicator for label applying machines
FR2685686A1 (en) * 1991-12-31 1993-07-02 Alcatel Satmam DEVICE FOR UNIFORM WETTING OF PRE-GLUED LABELS.
EP0550326A1 (en) * 1991-12-31 1993-07-07 Neopost Industrie Device for uniformly moistening pre-glued labels

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FR2770423A1 (en) 1999-05-07
US6254679B1 (en) 2001-07-03
FR2770423B1 (en) 2000-01-21

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